Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SCHOOL > SCIENCE CHEMISTRY > Flashcards

SCIENCE CHEMISTRY Flashcards

1
Q

What is Chemistry?

A

a branch of Science that deals with the the study of matter, its changes and the properties it undergoes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is Matter?

A

anything that occupies space and has mass. Solid, Liquid and Gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is Atom?

A

Basic unit of matter which comes from the Greek word, atomos, consists of sub-atomic particles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does Atomos mean?

A

Indivisible or cannot be divided.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the sub-atomic particles?

A

Protons, Neutrons, Electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is Proton?

A

positively charged particle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is Electron?

A

negatively charged particle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is Neutron?

A

uncharged particle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are Molecules?

A

are particles that are made up of two or more atoms chemically bonded together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are examples of Molecules?

A

oxygen, water, ozone, nitrogen, table salt, sugar.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are Compounds?

A

two or more atoms of different elements join together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

All compounds are ____ but not all Molecules are _____

A

molecules, compounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is Volume?

A

is the measure of the amount of space that a substance or an object takes up.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is compressibility?

A

is a measure of how much a given volume of matter decreases when placed under pressure.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is Diffusion?

A

movement of atoms, ions or molecules from an area of higher concentration to one of lower concentration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are solids?

A

Molecules are in fixed positions, very close to each other, hard and does not flow, fixed volume and shape, not easily compressible, extremely slow rate of diffusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What are liquids?

A

, particles are free to move and close to each other, assumes the shape of the container, non-compressible, slow rate of diffusion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are gases?

A

arrangement of particles are far from each other and move freely in empty space. Flows easily, assumes the shape and volume of the container, easily compressible, fast rate of diffusion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is Phase change?

A

is a process of changing a state of matter to another without a change in chemical composition.

20
Q

What are the reactions ?

A

Endothermic, Exothermic

21
Q

What is Endothermic?

A

take in energy and temperature of the surroundings decrease

22
Q

What are the characteristics of Endothermic?

A

melting, vaporization, sublimation.

23
Q

What is Exothermic?

A

reactions or processes that release energy

24
Q

Characteristics of Exothermic?

A

freezing, condensation, deposition

25
Q

What is Melting? What are the examples?

A

is a process that causes a substance to change from solid to liquid. Ice melts, butter melts

26
Q

What is Vaporization? What are the examples?

A

is a process that causes a substance to change from liquid to gas. Boiling water, drying clothes

27
Q

What is sublimation? Examples?

A

is a process that causes a substance to change from solid to gas. Dry ice, moth balls

28
Q

What is freezing? Examples?

A

is a process that causes a substance to change from liquid to solid. Freezing of water, formation of snow

29
Q

What is Condensation? Examples?

A

is a process that causes a substance to change from gas to liquid. Dew on the grass, steamy bathroom mirror

30
Q

What is Deposition? Examples?

A

From gas to solid. Water vapor to ice

31
Q

What is Intermolecular Forces?

A

Exists between molecules

32
Q

What does Intermolecular forces decrease? What does it increase?

A

melting, vaporization and sublimation. Freezing, condensation, deposition

33
Q

What is Intramolecular Forces?

A

it holds atoms together within a molecule

34
Q

What is a particle?

A

nature of matter

35
Q

Matter is ____ in nature therefore matter is composed of ____

A

particulate, particle

36
Q

What is the Particle theory of Matter?

A

all matter is made up of tiny particles called atoms, there is empty space between the particles, particles are in constant motion, there are forces that act between the particles.

37
Q

What are the properties of matter?

A

Physical properties and Chemical Properties

38
Q

What are physical Properties?

A

are observed physically about the substance at its natural state

39
Q

What are the natural states of physical properties?

A

intensive and extensive

40
Q

What is intensive?

A

do not depend on the amount of matter that the substance has (color, density, temperature, hardness)

41
Q

What is Extensive ?

A

are physical properties that depend on the amount of matter (mass, volume, length, weight)

42
Q

Can extensive and intensive properties be measured with changing the substance’s chemical identity? Why?

A

No, because they are physical properties

43
Q

What are Chemical properties?

A

Are observed when the substances chemically changes into an entirely new substance during a chemical change.

44
Q

what are examples of chemical properties?

A

cooking, rotting, burning, rusting.

45
Q

What are the evidences of chemical properties?

A

change in color, odor, bubbles appear, formation of insoluble solid or precipitate.

SCHOOL (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions